JM Commercial Roofing Codes Corner
Welcome to the Codes Corner! Here you will find quick links and cheat sheets to Johns Manville roofing systems code approvals and ratings.

Factory Mutual (FM)
Quick JM Reference Sheets:
TPO FM Approvals
TPO Adhered Systems Over Concrete Deck
TPO Induction Weld Systems Over Steel Deck
Mechanically Attached Insulation, No Cover Board, Adhered TPO Membrane Over Steel Deck
TPO Mechanically Attached System Over Steel Deck
Mechanically Attached Cover Board Over Steel Deck
Mechanically Attached Insulation, Adhered Cover Board, Adhered Membrane Steel Deck

Underwriters Laboratories
*Reference the TGFU.R10167 document

Miami-Dade County

Department of Business
& Professional Regulation
- TPO
- PVC
- EPDM
- SBS
- APP
- BUR
- ISO
- NOA

Cool Roof Rating Council

Texas Department of Insurance

Director of Roof Assemblies

PRI Report
CSA A123.21-14 Standard Test Method for the Dynamic Uplift Resistance of Membrane-Roof Systems